CN101235921B - Gas stove air valve control circuit and method - Google Patents
Gas stove air valve control circuit and method Download PDFInfo
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- CN101235921B CN101235921B CN2008100660010A CN200810066001A CN101235921B CN 101235921 B CN101235921 B CN 101235921B CN 2008100660010 A CN2008100660010 A CN 2008100660010A CN 200810066001 A CN200810066001 A CN 200810066001A CN 101235921 B CN101235921 B CN 101235921B
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- air valve
- circuit
- power supply
- adhesive
- gas
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Abstract
The invention relates to a control circuit and a method for gas valve of gas kitchen cooker. The control circuit for gas valve of gas kitchen cooker comprises a switch circuit (1) connected with power supply VC, at least one gas valve operational circuit (2) which are connected between the switch circuit (1) and the ground and a protection circuit (3) in parallel connection with the at least one gas valve operational circuit (2), wherein the switch circuit (1) controls on and off of power supply VC, then further controls the at least one gas valve operational circuit (2). The control method of the gas valve of gas kitchen cooker includes switching on the switch circuit (1), keeping pick-up of the gas value in the gas valve operational circuit (2) by current supplied by power supply VC, then switching off the switch circuit (1), and then thermoelectric couple of the gas valve operational circuit (2) provides current to keep pick-up of the gas value. The control circuit and a method for gas valve of gas kitchen cooker control current supplied by power supply directly by a switch circuit to keep pick-up of the gas value in the gas valve operational circuit, thereby the operation is more rapid, convenient with humanization.
Description
Technical field
The present invention relates to the Air Valve Control of gas cooker, more particularly, relate to a kind of gas stove air valve control circuit and method.
Background technique
The Air Valve Control of traditional gas cooker all is to adopt mechanical type, has certain unsafe factor.The air valve that also has adopts the thermocouple power supply, but this method need continue to pin air valve at the beginning of igniting, after thermocouple produces enough electric currents, can let go.Though this method is greatly improved at secure context than mechanical type method, there is not the present invention efficient and convenient in the operating aspect of hommization.Therefore, we need a kind of circuit and method that can directly make air valve keep adhesive.
Summary of the invention
The technical problem that the present invention will solve is, is not easily above-mentioned efficiently defective to the operation of existing technology, and a kind of gas stove air valve control circuit and method are provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of gas stove air valve control circuit; It is characterized in that; Comprise the switching circuit that is connected to power supply VC, be connected between said switching circuit and the ground at least one air valve working circuit and with the parallelly connected protective circuit of said at least one air valve working circuit; Conducting and the shutoff of said switching circuit control power supply VC, and then control said at least one air valve working circuit.
In gas stove air valve control circuit of the present invention, said switching circuit comprises transistor T R1, and the grid of said transistor T R1 connects incoming level, and drain electrode meets power supply VC, and source electrode connects the air valve working circuit.
In gas stove air valve control circuit of the present invention, said air valve working circuit comprise air valve, with the thermocouple of air valve parallel connection and the earth resistance R1 that connects with air valve.
In gas stove air valve control circuit of the present invention, said protective circuit comprises the transient voltage restraining diode D1 that is connected between switching circuit and the ground.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of gas stove air valve controlling method, it is characterized in that, said method comprises: actuating switch circuit, power supply VC provide electric current to make the air valve in the air valve working circuit keep adhesive; The stopcock circuit then provides electric current to make said air valve keep adhesive by the thermocouple in the air valve working circuit.
In gas stove air valve controlling method of the present invention, said method also comprises conducting and the shutoff that the input high-low level comes the control switch circuit.
In gas stove air valve control circuit of the present invention, said method comprises that further protective circuit suppresses the transient voltage between switching circuit and the ground.
The gas stove air valve control circuit of embodiment of the present invention and method have following beneficial effect:
Directly provide electric current to make the air valve in the air valve working circuit keep adhesive, operate faster convenience and have more hommization by switching circuit control power supply.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is an embodiment's of a gas stove air valve control circuit of the present invention schematic diagram;
Fig. 2 is another embodiment's of a gas stove air valve control circuit of the present invention schematic diagram;
Fig. 3 is the flow chart of gas stove air valve controlling method of the present invention.
Embodiment
Contrast prior mechanical Air Valve Control technology; And need pin air valve and make thermocouple produce enough electric currents to make air valve keep adhesive; The technology that the present invention adopts is directly to provide electric current to make the air valve in the air valve working circuit keep adhesive by switching circuit control power supply, and this scheme is operated faster convenience and had more hommization.
As shown in Figure 1, shown in gas stove air valve control circuit comprise the switching circuit 1 that is connected to power supply VC, be connected air valve working circuit 2 and the protective circuit 3 parallelly connected between switching circuit 1 and the ground with air valve working circuit 2.Switching circuit 1 comprises transistor T R1, and the grid of said transistor T R1 connects incoming level, and drain electrode meets power supply VC, and source electrode connects air valve working circuit 2.Air valve working circuit 2 comprise air valve, with the thermocouple of air valve parallel connection and the earth resistance R1 that connects with air valve.Said protective circuit 3 comprises the transient voltage restraining diode D1 that is connected between switching circuit 1 and the ground, is used to suppress the transient voltage between switching circuit 1 and the ground.
At the port one input low level, transistor T R1 conducting, power supply VC offers air valve and keeps the required electric current of adhesive.If during this period of time (this air valve is different with common solenoid valve by artificial adhesive for air valve; The electric current that VC provides can only make it keep adhesive; But can not make its adhesive; Adhesive must rely on external force), constitute a closed-loop path by power supply VC, air valve, resistance R 1, thermocouple, power supply ground so.For after the adhesive, the electric energy that power supply VC provides is converted into magnetic energy makes air valve keep adhesive to air valve by the people, and air valve begins to discharge combustion gas.If igniter work at this moment just can make gas cooker light smoothly.Yet the consideration in view of Security and energy-conservation aspect does not allow power supply one direct power supply, does not allow air valve to discharge combustion gas always yet.At input low level after a period of time, the input high level at the port one place, transistor T R1 ends, and keeping the required electric current of air valve adhesive is so then provided by other sensor.Now popular is to provide through thermocouple, as long as the working principle of thermocouple is heated exactly, will produce certain thermoelectrical potential.Close gas cooker if desired, then directly close gas check valve, like this air valve one-period of just having worked.The effect of transient voltage restraining diode D1 is the HV that suppresses between transistor T R1 and the ground, prevents that the high pressure of igniter moment generation from destroying entire circuit.
Fig. 2 is another embodiment's of a gas stove air valve control circuit of the present invention schematic diagram.Five air valve working circuits 2 that are connected between switching circuit 1 and the ground have been shown among the figure.The working principle of circuit shown in Figure 2 is identical with Fig. 1, and five shown air valves can work independently respectively, equally also can work simultaneously.As long as at the port one input low level, the transistor T R1 conducting of switching circuit 1, press arbitrary air valve this moment, and power supply VC will provide and make it keep the electric current of adhesive.Equally, at the port one input low level, the transistor T R1 of switching circuit 1 ends, and then stopping to provide electric current to make air valve keep adhesive by power supply VC, provides electric current to make air valve keep adhesive by the thermocouple of air valve working circuit 2.According to characteristics of the present invention, shown in the quantity of air valve working circuit 2 be not limited to one or five.
As shown in Figure 3, the flow chart of gas stove air valve controlling method of the present invention has been shown among the figure.In step 302, continue input low level at port one.In step 304, by the transistor T R1 conducting of switching circuit 1, power supply VC, air valve, resistance R 1, thermocouple, power supply ground constitute a closed-loop path so.In step 306, air valve is by adhesive artificially, and having mentioned this air valve above needs external force with its adhesive.In step 308, because switching circuit 1 conducting, if in during this period of time, air valve is by adhesive artificially, and the air valve that then provides electric current to make air valve working circuit 2 by power supply VC keeps adhesive.Consideration in view of Security and energy-conservation aspect does not allow power supply one direct power supply, does not allow air valve to discharge combustion gas always yet.In step 310, at the port one input high level.In step 312, the transistor T R1 of switching circuit 1 ends, and power supply VC stops to provide electric current to make air valve keep adhesive.In step 314, switching circuit 1 turn-offs, and then the thermocouple by air valve working circuit 2 provides electric current to make air valve keep adhesive, as long as the working principle of thermocouple is heated exactly, will produce certain thermoelectrical potential.In step 316, close gas cooker if desired, then directly close gas check valve, like this air valve one-period of just having worked.
The present invention describes through some embodiments, and those skilled in the art know, under the situation that does not break away from the spirit and scope of the present invention, can carry out various changes or equivalence replacement to these characteristics and embodiment.In addition, under instruction of the present invention, can make amendment to these characteristics and embodiment can not break away from the spirit and scope of the present invention to adapt to concrete situation and material.Therefore, the present invention does not receive the restriction of specific embodiment disclosed herein, and all interior embodiments of claim scope that fall into the application belong to protection scope of the present invention.
Claims (3)
1. gas stove air valve control circuit; It is characterized in that; Comprise the switching circuit (1) that is connected to power supply VC, be connected at least one air valve working circuit (2) and the protective circuit (3) parallelly connected between said switching circuit (1) and the ground with said at least one air valve working circuit (2); Conducting and the shutoff of said switching circuit (1) control power supply VC, and then control said at least one air valve working circuit (2); Said air valve working circuit (2) comprise air valve, with the thermocouple of air valve parallel connection and the earth resistance R1 that connects with air valve; Said air valve relies on the external force adhesive, and after said air valve adhesive, said power supply VC, air valve, earth resistance R1, thermocouple, power supply ground constitute a closed-loop path; The electric current that said power supply VC provides is only kept said air valve adhesive;
Said switching circuit (1) comprises transistor T R1, and the grid of said transistor T R1 connects incoming level, and drain electrode meets power supply VC, and source electrode connects air valve working circuit (2);
Said protective circuit (3) comprises the transient voltage restraining diode D1 that is connected between switching circuit (1) and the ground.
2. a gas stove air valve controlling method is characterized in that, said method comprises: actuating switch circuit (1), power supply VC provide electric current to make the air valve in the air valve working circuit (2) keep adhesive; Stopcock circuit (1) then provides electric current to make said air valve keep adhesive by the thermocouple in the air valve working circuit (2); Suppress the transient voltage between switching circuit (1) and the ground through protective circuit (3); Said air valve relies on the external force adhesive, and after said air valve adhesive, said power supply VC, air valve, earth resistance R1, thermocouple, power supply ground constitute a closed-loop path; The electric current that said power supply VC provides is only kept said air valve adhesive.
3. gas stove air valve controlling method according to claim 2 is characterized in that, said method also comprises conducting and the shutoff that the input high-low level comes control switch circuit (1).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100660010A CN101235921B (en) | 2008-01-30 | 2008-01-30 | Gas stove air valve control circuit and method |
| US12/529,746 US8272376B2 (en) | 2007-12-21 | 2008-04-25 | Gas cooker control system |
| PCT/CN2008/070797 WO2009079931A1 (en) | 2007-12-21 | 2008-04-25 | Control system for a gas cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100660010A CN101235921B (en) | 2008-01-30 | 2008-01-30 | Gas stove air valve control circuit and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101235921A CN101235921A (en) | 2008-08-06 |
| CN101235921B true CN101235921B (en) | 2012-02-29 |
Family
ID=39919733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100660010A Expired - Fee Related CN101235921B (en) | 2007-12-21 | 2008-01-30 | Gas stove air valve control circuit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101235921B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071308U (en) * | 1990-06-01 | 1991-02-13 | 冯贵春 | Electromagnetic safety valve of gas stove |
| CN2251087Y (en) * | 1996-01-06 | 1997-04-02 | 郁泉 | Driving safety valve protector |
| CN2326799Y (en) * | 1998-01-26 | 1999-06-30 | 戴家秀 | Gas safety valve |
-
2008
- 2008-01-30 CN CN2008100660010A patent/CN101235921B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071308U (en) * | 1990-06-01 | 1991-02-13 | 冯贵春 | Electromagnetic safety valve of gas stove |
| CN2251087Y (en) * | 1996-01-06 | 1997-04-02 | 郁泉 | Driving safety valve protector |
| CN2326799Y (en) * | 1998-01-26 | 1999-06-30 | 戴家秀 | Gas safety valve |
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| Publication number | Publication date |
|---|---|
| CN101235921A (en) | 2008-08-06 |
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Granted publication date: 20120229 Termination date: 20220130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |